References usually come at the end of a text (essay or research report)
and should contain only those works cited within the text. So, use the term 'References'
to cover works cited, and 'Additional Bibliography' to refer to works read as
general background.

A Bibliography
is any list of references at the end of a text, whether cited or not. It includes
texts you made use of, not only texts you referred to in your paper, but your own
additional background reading, and any other articles you think the reader might need as
background reading.

Both Refs. & Bibliog. must be in alphabetical order; and each entry must be
laid out in a strictly ordered sequence. Examples:

Note: There are many variations of format, even within the same discipline.
Browse through the back pages of different journals to get an idea. Our advice is to
choose a system you like - or your teachers prefer - and use it consistently.

In Academic Grammar, we use
a simplified version of the 'house style' most common to the Social Sciences: the American
Psychological Association, or APA, for all of our formats, as
illustrated previously.
A typical book entry would be as follows:Hamp-Lyons, L. & K. Courter (1984) Research matters.
Rowley, Mass.: Newbury House.